Lamp-receptacle and holding means therefor.



H. T. HOGHHAUSEN.

LAM} BEGEPTAGLE AND HOLDING MEANS THEREFOR.

APPLICATION FILED JULY 25, 1907. RENEWED JULY 15, 1910.

984,561. Patented Feb.21, 1911.

UNITED STATES PATE T ()FFICE.

HERMAN HOCHHAUSEN, OF BROOKLYN, NEW YORK.

LAMP-RECEET ACLE AND HOLDING MEANS .TliEREFOR.

Specification of Letters Patent.

Patented Feb. 21, 1911.

Application filed July 25, 1907, Serial No. 385,419. Renewed July 15, 1910. Serial No. 572,201.

To all whom it may concern:

Be it known that I, HERMAN T. HocH- HAUSEN, a citizen of the United States of' America, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Lamp-Receptacles and Holding Means Therefor, of whichthe following is a specification.

The object of my invention is to provide an electric light receptacle having features of novelty and advantage.

In the drawings Figure 1 is a side elevation of the receptacle. Fig. 2 shows the receptacle secured to the supporting plate with part broken away to show construction. 3 is a front View of the device. a rear view of the same. Fig. 5 is a front view of the device secured to the supporting plate. Fig. 6 is a view of the securing ring. Fig. 7 is a detail view of the'plate. Fig. 8' is a central vertical section of the socket.

Tliere are many instances, as in the manufacture of electric signs, where lamp sockets, or receptacles are secured to the rear side of an apertured plate and the lamp base is passed through the aperture and secured into the receptacle. One part of my invention relates toimeans for mounting the receptacle on this supporting plate. The aper- Fig.

tured supporting plate is indicated at a; thereceptacle in general is indicated at b and may be of any well known construction so far as this part of my invention is concerned.

From the face of the receptacle there. is projected a hub c of a suitable size to pass through the aperture in the supporting plate. This hub is circumferentially grooved'on its exterior as at d. A split wire ring a is sprung into the groove of the hub and clamps the plate between itself and the face of the receptacle. In order to prevent the receptacle from turning when a lamp is being screwed in or out I cut .a hole a through the supporting plate in such a position that it will register with holes 6 5 formed in the face of the recepta'cle,-the split ring e being extended into a down-turned tail e which passes through this hole a into one of Fig. 4 is easily and quickly manipulated, and prevents breakage of the receptacles due to the expansion and contraction of the supporting plate.

Another advantage of my receptacle is that a number of them can be wired up before they are mounted on the supporting plate, which is a great advantage many times where the character of the Work makes it diflicultto wire the receptacles up after they have been secured to the supporting plate. The fact that there are a number of holes in the-face of the receptacle which the bent down tail of the wire ring 6 can engage permits of the socket being turned so that the wiring will run straight, avoiding the necessity of any, special manner of forming the apertures.

-Another feature of my invention resides in the barrier surrounding the central contact point 7 on the interior of the receptacle so as to prevent short circuiting between this central contact and the shell contact r Another feature resides in forming wire grooves h in the rear of the receptacle to receive the line wires and to connect them with the terminals. After the receptacle is wired up the depressions are filled in with wax or other suitable material to cover andinsulate the exposed parts, thus avoiding the necessity for the use of insulating tape and the like for coveringexposed parts;

I claim as my invention 1. The combination with an apertured supporting plate, of a lamp receptacle mounted in said plate and having a plurality of openings, a grooved hub on the receptacle, and a clamp-ring engaging said grooved hub andhaving an inturned end projecting through the'supporting plate and engaging in one of the openings in the receptacle to lock the latter against rotation in the supporting plate.

2. The combination with an apertured.

supporting plate having an opening therethrough adjacent the aperture in said plate, of a lamp receptacle having a hub project ing through the aprturein said plate, and

a clamping ring engaging the hub and havingv an inturned end project-ing through the opening in said supporting plate and engaging in an openmg provided therefor in the receptacle to lock the latter against rota- .tion in the supporting plate.

3. The combination with a supporting "plate having an aperture for a lamp receptacle and having an opening adjacent said aperture of a lamp receptacle in the plate, and a clamp-ring engaging said receptacle and having an inturned end extending through the openin in the plate and into an opening provide therefor in the receptacle to lock the latter against rotation in the supporting-plate.

4. The combination with an apertured supporting plate, of a lamp receptacle, an annular hub projecting from the face of said receptacle and passing through. said aperture, a split ring engaging said hub in front of and overlying said plate, and registering locking holes in said plate and the 5 face of said-receptacle, and a downwardly bent tail piece extending from said split ring and engaging said locking holes in the plate and receptacle.

In testimon whereof I affix my signature 20 in presence 0 two witnesses.

HERMAN T. HOCHHAUSEN.

- Witnesses:

WILLIAM O. TURNER, F. S. WATTS. 

